
function parseJSON(response) {

  return response.json();
}

function checkStatus(response) {

  if (response.status >= 200 && response.status < 300) {
    return response;
  }

  const error = new Error(response.statusText);
  error.response = response;
  throw error;
}

export function postOptions(values) {
  const options = {
    method: "POST",
    body: JSON.stringify(values),
    headers: { 'Content-Type': 'application/json' }
  };

  return options;
}
export function getOptions(values) {
  const options = {
    method: "GET",
    params: values,
    headers: { 'Content-Type': 'application/json' }
  };
  return options;
}
/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [options] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export function request(url, options) {

  return fetch(url, options)
    .then(checkStatus)
    .then(parseJSON)
    .then((data) => {

      return { data };
    })
    .catch(err => {
      alert(err);
    });
}